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Finding the Fourth Proportional to 8,900.35, 13,350.35 and 2,660.38

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Solution

The fourth proportional to 8,900.35, 13,350.35 and 2,660.38 is: 3,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.35 : 13,350.35 = 2,660.38 : x
  2. Step 2: Convert to fraction form
    8,900.35/13,350.35 = 2,660.38/x
  3. Step 3: Cross multiply
    8,900.35x = 13,350.35 × 2,660.38
  4. Step 4: Simplify right side
    8,900.35x = 35,516,977.41
  5. Step 5: Solve for x
    x = 35,516,977.41/8,900.35
  6. Step 6: Final answer
    x = 3,990.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.